Plate IV. 



Leptosphceria Sacckari. 



Fig. i. A portion of a leaf of sugar cane shewing the ring spots produced 

 by the fungus. 



Fig. 2. An ascus with spores. 



Fig. 3. Two spores more highly magnified. 

 Ustilago Sacckari. 



Fig. 4. The apex of a shoot of sugar cane showing the apical leaves 

 converted into a black, whip-like structure. 



Fig. 5. Two spores. 

 Marasmius Sacchari. 



Fig. 6. The base of a cane bearing toadstools of different ages. 



Fig. 7. Two spores. 

 Corticium javanicum. 



Fig. 8. Shewing the hymenium of the fungus. 



Fig. 9. Two basidiospores. 



Plate V. 



Diplodia cacaoicola. 



FlG. 1. The stem of a cacao plant shewing the perithecia of the fungus 

 erumpent in groups through the surface of the bark. 



FlG. 2. The Fusarium-loxxw which appears on the stroma in which the 

 perithecia are embedded. 



Fig. 3. Two mature conidia of the Fusarium-ioxm highly magnified. 



Fig. 4. A stroma with two perithecia embedded in it. 



Fig. 5. Two spores highly magnified. 

 Pestalozzi a Pal mar um 



Fig. 6a. Two conidia. 



Fig. 6b A raised spot from which a curved tendril of conidia is oozing out. 

 Ramularia necator. 



Fig. 7. Fertile hyph?e bearing conidia. 



Plate VI. 



Colletotrichum luxificum. 



Fig. i . Section of a pod shewing an acervulus. 

 Colletotrichum Cradwickii. 



Fig. 2. A pod of cacao shewing the acervuli of the fungus. 



Fig. 3. Section of a pod shewing an acervulus. 

 Colletotrichum falcatum. 



Fig 4. Setse, conidiophores and conidia. 

 Colletotrichum incarnatum. 



Fig. 5. Section of a pod shewing an acervulus. 

 Hemileia vastatrix. 



Fig. 6. Portion of a leaf of coffee shewing a pale-coloured spot with 

 pustules. 



Fig. 7. Two conidia viewed from different sides. 



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